Legal claims defining the scope of protection, as filed with the USPTO.
1. A method of changing subchannel transmission parameters in a multicarrier transmitter configured to transmit data-carrying DMT symbols and non-data-carrying DMT symbols, with a non-data-carrying DMT symbol being transmitted after every N data-carrying DMT symbols, the method comprising: signaling by the transmitter, a change in subchannel transmission parameters with a change in phase of one of the non-data-carrying DMT symbols, wherein the data-carrying DMT symbols are decoupled from a plurality of codewords and a plurality of ADSL frames.
2. The method of claim 1 , wherein the change in the phase is 180 degrees.
3. The method of claim 1 , wherein the change in subchannel transmission parameters comprises using updated subchannel transmission parameters after a predetermined number of DMT symbols following transmission of the one of the non-data-carrying DMT symbols.
4. The method of claim 1 , wherein the one of the non-data-carrying DMT symbols is a sync symbol constructed by modulating all DMT carriers with a predefined sequence of bits.
5. The method of claim 1 , wherein the one of the non-data-carrying DMT symbols is an inverted sync symbol.
6. The method of claim 1 , wherein the subchannel transmission parameters includes an allocation of bits to a subchannel.
7. A method of changing subchannel reception parameters in a multicarrier receiver configured to receive data-carrying DMT symbols and non-data-carrying DMT symbols, with a non-data-carrying DMT symbol being received after every N data-carrying DMT symbols, the method comprising: changing by the receiver, subchannel reception parameters based on a change in phase of one of the non-data carrying DMT symbols, wherein the data-carrying DMT symbols are decoupled from a plurality of codewords and a plurality of ADSL frames.
8. The method of claim 7 , wherein the change in the phase is 180 degrees.
9. The method of claim 7 , wherein the change in subchannel reception parameters comprises using updated subchannel reception parameters after a predetermined number of DMT symbols following reception of the one of the non-data-carrying DMT symbols.
10. The method of claim 7 , wherein the one of the non-data-carrying DMT symbols is a sync symbol constructed by modulating all DMT carriers with a predefined sequence of bits.
11. The method of claim 7 , wherein the one of the non-data-carrying DMT symbols is an inverted sync symbol.
12. The method of claim 7 , wherein the subchannel reception parameters includes an allocation of bits to a subchannel.
13. A multicarrier transmitter configured to transmit data-carrying DMT symbols and non-data-carrying DMT symbols, with a non-data-carrying DMT symbol being transmitted after every N data-carrying DMT symbols, the transmitter comprising: means for determining or detecting that subchannel transmission parameters are to be changed; and means for changing the subchannel transmission parameters by signaling a change in the subchannel transmission parameters with a change in phase of one of the non-data carrying DMT symbols, wherein the data-carrying DMT symbols are decoupled from a plurality of codewords and a plurality of ADSL frames.
14. The transmitter of claim 13 , wherein the change in the phase is 180 degrees.
15. The transmitter of claim 14 , wherein the change in subchannel transmission parameters comprises a utilization of updated subchannel transmission parameters after a predetermined number of DMT symbols following transmission of the one of the non-data carrying DMT symbols.
16. The transmitter of claim 13 , wherein the one of the non-data-carrying DMT symbols is a sync symbol constructed by a modulation of all DMT carriers with a predefined sequence of bits.
17. The transmitter of claim 13 , wherein the one of the non-data-carrying DMT symbols is an inverted sync symbol.
18. The transmitter of claim 13 , wherein the subchannel transmission parameters includes an allocation of bits to a subchannel.
19. A multicarrier receiver configured to receive data-carrying DMT symbols and non-data-carrying DMT symbol, with a non-data-carrying DMT symbol being received after every N data-carrying DMT symbols, the receiver comprising: means for determining or detecting that subchannel reception parameters are to be changed; and means for changing the subchannel reception parameters based on a change in phase of one of the non-data-carrying DMT symbols, wherein the data-carrying DMT symbols are decoupled from a plurality of codewords and a plurality of ADSL frames.
20. The receiver of claim 19 , wherein the change in the phase is 180 degrees.
21. The receiver of claim 19 , wherein the change in subchannel reception parameters comprises a utilization of updated subchannel reception parameters after a predetermined number of DMT symbols following reception of the one of the non-data-carrying DMT symbols.
22. The receiver of claim 19 , wherein the one of the non-data-carrying DMT symbols is a sync symbol constructed by a modulation of all DMT carriers with a predefined sequence of bits.
23. The receiver of claim 19 , wherein the one of the non-data-carrying DMT symbols is an inverted sync symbol.
24. The receiver of claim 19 , wherein the subchannel reception parameters includes an allocation of bits to a subchannel.
25. An article of manufacture, comprising: computer-readable storage media; and information stored in the storage media, that if executed by a processor coupled to a multicarrier transmitter, causes the processor to cause the multicarrier transmitter to signal a change in subchannel transmission parameters with a change in phase of one non-data-carrying DMT symbol of a plurality of non-data-carrying DMT symbols, wherein a plurality of data-carrying DMT symbols are decoupled from a plurality of codewords and a plurality of ADSL frames.
26. The article of manufacture of claim 25 , wherein the change in phase is 180 degrees.
27. The article of manufacture of claim 25 , wherein the information causes the processor to change the transmission parameters after a predetermined number of DMT symbols following a transmission of the one non-data-carrying DMT symbol.
28. The article of manufacture of claim 25 , wherein the one non-data-carrying DMT symbol is a sync symbol constructed by modulating all DMT carriers with a predefined sequence of bits.
29. The article of manufacture of claim 25 , wherein the one non-data-carrying DMT symbol is an inverted sync symbol.
30. The article of manufacture of claim 25 , wherein at least one of the transmission parameters includes an allocation of bits to subchannels.
31. An article of manufacture, comprising computer-readable storage media; and information stored in the computer-readable storage media that, if executed by a processor coupled to a multicarrier receiver, causes the processor to cause the multicarrier receiver to change reception parameters based on a change in phase of one non-data-carrying DMT symbol of a plurality of non-data-carrying DMT symbols, wherein a plurality of data-carrying DMT symbols are decoupled from a plurality of codewords and a plurality of ADSL frames.
32. The article of manufacture of claim 31 , wherein the change in phase is 180 degrees.
33. The article of manufacture of claim 31 , wherein the information causes the processor to change the reception parameters after a predetermined number of DMT symbols following a reception of the one non-data-carrying DMT symbol.
34. The article of manufacture of claim 31 , wherein the one non-data-carrying DMT symbol is a sync symbol constructed by modulating all DMT carriers with a predefined sequence of bits.
35. The article of manufacture of claim 31 , wherein the one non-data-carrying DMT symbol is an inverted sync symbol.
36. The article of manufacture of claim 31 , wherein at least one of the reception parameters includes an allocation of bits to subchannels.
37. A multicarrier transceiver comprising: a transmitter configured to change transmission parameters and to transmit data-carrying DMT symbols and non-data carrying DMT symbols, wherein the transmitter is further configured to transmit a non-data-carrying DMT symbol after every N data-carrying DMT symbols, wherein a change in subchannel transmission parameters is signaled, by the transmitter, with a change in phase of one of the non-data-carrying DMT symbols, and wherein the data-carrying DMT symbols are decoupled from a plurality of codewords and a plurality of ADSL frames.
38. The transceiver of claim 37 , wherein the change in phase is 180 degrees.
39. The transceiver of claim 37 , wherein the change in subchannel transmission parameters comprises using updated subchannel transmission parameters after a predetermined number of DMT symbols following a transmission of the one of the non-data-carrying DMT symbols.
40. The transceiver of claim 37 , wherein the one of the non-data-carrying DMT symbols is a sync symbol constructed by a modulation of all DMT carriers with a predefined sequence of bits.
41. The transceiver of claim 37 , wherein the one of the non-data-carrying DMT symbols is an inverted sync symbol.
42. The transceiver of claim 37 , wherein the subchannel transmission parameters includes an allocation of bits to subchannels.
43. A multicarrier transceiver comprising: a receiver configured to change subchannel reception parameters and to receive data-carrying DMT symbols and non-data-carrying DMT symbols, wherein the receiver is further configured to receive a non-data-carrying DMT symbol after every N data-carrying DMT symbols, and wherein a change in subchannel reception parameters is determined by the receiver based on a change in phase of one of the non-data-carrying DMT symbols, wherein the data-carrying DMT symbols are decoupled from a plurality of codewords and a plurality of ADSL frames.
44. The transceiver of claim 43 , wherein the change in phase is 180 degrees.
45. The transceiver of claim 43 , wherein the change in subchannel reception parameters comprises a utilization of updated subchannel reception parameters after a predetermined number of DMT symbols following a reception of the one of the non-data-carrying DMT symbols.
46. The transceiver of claim 43 , wherein the one of the non-data-carrying DMT symbols is a sync symbol constructed by a modulation of all DMT carriers with a predefined sequence of bits.
47. The transceiver of claim 43 , wherein the one of the non-data-carrying DMT symbols is an inverted sync symbol.
48. The transceiver of claim 43 , wherein the subchannel reception parameters includes an allocation of bits to subchannels.
49. The method of claim 1 , wherein the subchannel transmission parameters includes a power level of a subchannel.
50. The method of claim 7 , wherein the subchannel reception parameters includes a power level of a subchannel.
51. The transmitter of claim 13 , wherein the subchannel transmission parameters includes a power level of a subchannel.
52. The receiver of claim 19 , wherein the subchannel reception parameters includes a power level of a subchannel.
53. The transceiver of claim 37 , wherein the subchannel transmission parameters includes a power level of a subchannel.
54. The transceiver of claim 43 , wherein the subchannel reception parameters includes a power level of a subchannel.
55. The article of manufacture of claim 25 , wherein the transmitter is configured to transmit the plurality of data-carrying DMT symbols and the plurality of non-data-carrying DMT symbols, and wherein the information causes the processor to cause the transmitter to transmit a non-data carrying DMT symbol after every N data-carrying DMT symbols.
56. The article of manufacture of claim 31 , wherein the multicarrier receiver is configured to receive the plurality of data-carrying DMT symbols and the plurality of non-data-carrying DMT symbols.
Unknown
December 28, 2010
Browse 5M+ US patents with plain-English claim translations and AI-generated analysis.